JP2739396B2 - How to correct the cause of the loom stoppage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for automatically correcting the recorded contents of the previous stop cause in the process of storing the stop cause of the loom.

[0002]

2. Description of the Related Art Generally, the causes of stopping a loom can be roughly classified into a weft cause caused by a weft yarn and a weft insertion device and a warp cause caused by a warp yarn. Each of these can be detected by a known landscape insertion detection feeler, a dropper device, or the like.

[0003] The occurrence of the cause of the stop during weaving is detected by the weft insertion detection feeler or the like, and as a result, the loom is automatically stopped and can be restarted by a weaver or by an automatic repair device. Is set to an appropriate state. At this time, the cause of the stoppage is recorded from the viewpoint of maintenance and inspection of the loom and quality control of the woven fabric.

[0004] By the way, even if the cause of the stop is a bit, the cause of the stop is various in detail. For example, as a cause of the weft, there are a show topic, a long pick, a ben topic, a tip trouble, an idle stop, and a warp fluff. If these detailed stop causes can be directly detected by the feeler, the detailed stop causes will be reliable. However, at present, a rough determination such as a cause of a sideway or a vertical cause can be detected by a sensor, but a sensor capable of accurately determining a detailed stop cause has not been put to practical use.

Japanese Patent Laid-Open No. Sho 54-42461 discloses that a detailed stop cause that cannot be grasped by a sensor is manually input.

[0006]

[Problems of the above technology] According to the above technology, a detailed stop cause may be erroneously input.
There was a problem that the reliability of management data was low. That is, even if an abnormality is detected by the weft insertion detection feeler, the true cause may be in the warp yarn, and if this is not noticed, a detailed stop cause related to the weft yarn is erroneously input. Was sometimes done.

For example, a warp yarn is loose, a fluff is generated on a warp yarn, and the fluff interferes with an adjacent warp yarn, or an opening device is defective, resulting in poor opening, resulting in poor weft insertion. May occur. In this case, even if an abnormality is detected by the weft insertion detection feeler, the cause of the stop should be input as a warp looseness, a warp fluff, or a defect of the shedding device related to the warp.

After the weaving machine is stopped due to the poor weft insertion, the worker checks the weaving state and if the weft is stopped with the weft hooked on the warp yarn, it is apparent that the opening is poor due to a loose warp yarn or the like. Can be determined. However, in the case of poor opening, it is not rare that the leading end of the weft is bent or the leading end of the weft is entangled. Since this is not different from the state of a normal weft insertion defect such as a vent topic or a tangled tip, it is very difficult to judge that this is caused by a warp yarn abnormality.

Further, according to the prior art, when a mistake in the input of the cause of the detailed stop is noticed, it is presumed that the error is corrected by manual input.
Judgment mistakes and input mistakes are inevitable, and the cause of the stop cannot be accurately grasped.

When a warp yarn break detector such as a dropper device is activated, it can be determined that the warp yarn is loose or warp broken. At this time, based on the output signal of the warp break detector, the cause of the stop may be a warp loose or a warp break, and there is no need to correct it in the future.

[0011]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to determine a previous stop cause at the time of the current stop of the loom by referring to the current stop cause, the previous stop cause, and the operating state after the previous stop. In order to improve the reliability of administrative data, the data is automatically corrected according to the data.

[0012]

According to the present invention, there is provided a method for recording at least a vertical cause and a horizontal cause as a stop cause for each stop during weaving.
In addition, when the operation period from the restart time after the previous stop to the current stop time is shorter than the predetermined period, and the previous stop cause is determined to be the lateral cause, the previous stop cause is determined to be the current stop cause. The cause is automatically corrected.

In general, even when the machine is stopped due to poor weft insertion, if the true cause is warp yarn looseness, warp yarn fluff, or the like, unless the true cause such as warp yarn looseness is repaired, it is re-started. After the start, it stops again by the same phenomenon within a relatively short time. The present invention focuses on this fact. If the true cause is a warp yarn looseness and a poor insertion caused by a poor opening caused by it, the worker could not determine it and erroneously identified the detailed cause of the stoppage, for example, with a tangled tip. Suppose you enter something. At this time, according to the present invention, if the operation period due to the subsequent restart is shorter than the predetermined period, and if the cause of the current stop can be determined to be the warp looseness, in consideration of the above noted facts, the previous detailed It is determined that the cause of the stop is the warp looseness, and the previous detailed stop cause is automatically corrected to the warp looseness similarly to the present cause.

[0014]

FIG. 1 shows a system configuration for implementing the method of the present invention. Recording device 1 for cause of loom stoppage
Is a horizontal feeler 2, a vertical feeler 3, other feelers 4 for detecting a catch code break, etc., a comparator 5,
It is connected to the detailed stop cause determination / input device 6.
The comparator 5 includes a setter 7 and a storage 8 for a predetermined period.
Is connected to the measuring device 9 during the operation.

During weaving, when the loom is stopped due to a weft cause, a warp cause or another stop cause corresponding to the feeler 4, the recording device 1 causes the weft feeler 2, the warp feeler 3 or another feeler 4 to stop. The signal is input directly and recorded on paper or a floppy disk.

On the other hand, the worker confirms the weaving state of the stopped loom, determines the detailed cause of the stop, and inputs it to the detailed stop cause determination / input device 6. The determination / input device 6 sends it to the recording device 1. Therefore, the recording device 1 records a stop cause that can be directly detected by the horizontal feeler 2, the vertical feeler 3, and the other feelers 4, and also records a detailed stop cause determined among the causes. Different.

On the other hand, as shown in FIG. 2, the operating period measuring device 9 measures the period from the last stop time to the current stop time, that is, the operating period, by using an operation signal of the loom as an input, and stores it. Is sent to the container 8, where it is stored.

Thereafter, when the weaving machine resumes weaving and the cause of the stop again occurs, the same operation as described above is repeated, and the stop cause and the detailed stop cause are recorded together.

Thereafter, the recording apparatus 1 executes a program for the correction function based on FIG.

First, the cause of the current stop = the cause of the vertical stop? Is determined, and if YES, operation period ≦ predetermined period? Is determined by the comparator 5, and when YES, the cause of the previous stop = the cause of the sideways? Is determined. Here YES
In this case, the cause of the previous stop is determined to be based on an erroneous determination, and the cause of the previous stop is corrected to the cause of the current stop. If the result of each of the above determination steps is NO, the cause correction program ends without correcting the previous stop cause.

[0021]

Embodiment 2 FIGS. 4 and 5 show that the judgment of the above embodiment is made more accurate by correcting past stop causes based on a plurality of operation periods in the past. That is, as in the above-described embodiment, in the determination based on only the operation period for the past one time, the short operation period may have happened to be the cause of the accident. On the other hand, by judging a plurality of operation periods in the past, this phenomenon can be excluded, and a more accurate judgment can be made.

After the flowchart of the cause correction is started, the cause of the current stop = the cause immediately after? Is determined, YE
If S, then the previous operation period T1 ≦ predetermined period? ,
The operation period T2 before the last time ≦ predetermined period? Is determined, and if both are YES, the cause of the previous stop = the next cause? The cause of the last stop two times? Are sequentially determined, and when both are YES, it is determined that correction is necessary, and the cause of the previous stop and the stop immediately before the previous stop are corrected. You. If NO in these determination steps, no correction is made assuming that the reliability of the previous and second previous determinations is high.

In the above embodiment, the operation period may be the number of weaving picks instead of the time. In addition, instead of manual input, the detailed stop cause is automatically determined based on a repair operation specific to the detailed stop cause by a proposal separately filed by the present applicant, and this is automatically input. It may be.

[0024]

According to the present invention, in the process of recording the cause of the stoppage of the loom, the previous cause of the stoppage is determined based on the result of comparison between the current stoppage cause and the previous stoppage cause and the operation period from the previous time to the present time. Since the correction is automatically performed, the reliability of the management data is improved.

Further, when the stop causes and the operation periods over a plurality of times in the past are used, more accurate correction can be made.

[Brief description of the drawings]

FIG. 1 is a block diagram of a system for performing the method of the present invention.

FIG. 2 is a time chart of the operation progress.

FIG. 3 is a flowchart of stop cause correction.

FIG. 4 is a time chart of the operation progress.

FIG. 5 is a flowchart of a stop cause correction program according to a second embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Recording device 2 Side feeler 3 Vertical feeler 4 Other feelers 5 Comparator 6 Detailed stop cause judgment / input device 7 Predetermined period setting device 8 Storage device 9 Operation period measuring device

Claims (2)

(57) [Claims] In 1. A process of recording at least the vertical causes and transverse cause a stop cause the stoppage each in weaving, because vertical is this stop cause and the restart time after a previous stop of the time A loom characterized in that when the operation period up to the stop point is shorter than a predetermined period, and the previous stop cause is determined to be a wake cause, the previous stop cause is corrected to the current stop cause. To correct the cause of the outage. 2. The number of causes for stopping each stop during weaving is small.
In the process of recording the cause
The cause of the outage is the cause and several times in the past
All operating periods are shorter than the specified period, and
The cause of the previous stop was all judged to be the cause
The previous stop cause is the cause of the current stop cause
Method of correcting the cause of a loom stop characterized by correction
Law.